package com.atguigu.juc.homework3;

import java.util.concurrent.CountDownLatch;

public class CountDownLatchDemo {
    public static void main(String[] args) throws InterruptedException {
       /* CountDownLatch countDownLatch=new CountDownLatch(6);
        for (int i = 1; i <=6 ; i++) {

            new Thread(() -> {
                System.out.println(Thread.currentThread().getName()+ " 号同学 下课离开教室");
                countDownLatch.countDown();
            },String.valueOf(i)).start();
        }
        countDownLatch.await();
        System.out.println(Thread.currentThread().getName()+" 班长最后走  锁门");*/


        for (int i = 1; i <=6 ; i++) {

            new Thread(() -> {
                System.out.println(Thread.currentThread().getName()+ " 号同学 下课离开教室");

            },String.valueOf(i)).start();
        }

        System.out.println(Thread.currentThread().getName()+" 班长最后走  锁门");
    }
}
